I've enjoyed playing around with Mint 16, it's particularly nice to have a customizable desktop that you really can make your own. One of my favourite applications of distros past is Cairo Dock - I love the groovy animations and funky sound effects: it's been a real blast having it back! However, I have noticed some problems with the overlay graphics; when a window overlaps the dock, the pop-up menus and icons become washed out and visually pretty horrible.
Fortunately, it's an easy fix to revert to the bundled driver and fix the graphics performance:
From the menu button on your Taskbar, select Administration and then Driver Management - input your password at the authentication dialog.
In the Driver Manager (as superuser) dialog, select the xserver-xorg-video-nouveau option, click Apply changes, & (once the driver has downloaded & installed) reboot.
When you reboot, things should have returned to normal. However, you may see a dialog at startup advising you to turn on OpenGL: check the remember my choice checkbox and select yes.
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